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Depreciation by Three Methods; Partial Years Perdue company purchased equipment on April 1 for $58,620. The equipment was expected to have a useful life of three years, or 6,100 operating hours, and a residual value of $1,920 The equipment was used for 1,500 hours during Year 1, 2,800 hours in Year 2, 2,400 hours in Year 3 and 1,400 hours in year a Required: Determine the amount of depreciation expense for the years ended December 31 Year 1 Year 2 Year 3, ond Year 4, by (a) the straight-line method, (b) the units-of- activity method, and (c) the double declining balance method. Note: Round all final values for each depreciation method and each year to the nearest whole dollar a. Straight-line method Amount Year Year 1 Year 2 Year 3 Year 4 b. Units-of-activity method Year mount Year 1 10 Year 2 Year 3 Year Amount Year 1 Year 2 Year 3 Year 4 b. Units-of activity method Year Amount Year 1 Year 2 Year 3 Year 4 c. Double-declining-balance method Year Amount Year 1 Year 2 Year 3 Year 4